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Light extraction substrate for organic light emitting element and organic light emitting element including same

A light extraction and substrate technology, applied in optical components, organic semiconductor devices, electrical components, etc., can solve the problems of light loss, difficult formation and influence in technical aspects, maximize scattering efficiency, improve light extraction efficiency, optimize more The effect of layer structure

Active Publication Date: 2019-01-18
SAMSUNG CORNING PRECISION MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the inner light extraction layer can have a higher light extraction efficiency than the outer light extraction layer, such an inner light extraction layer will cause light loss
In addition, the internal light extraction layer must be formed during the manufacturing process of the OLED device, is affected by subsequent processes, and is technically difficult to form, which is problematic

Method used

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  • Light extraction substrate for organic light emitting element and organic light emitting element including same
  • Light extraction substrate for organic light emitting element and organic light emitting element including same
  • Light extraction substrate for organic light emitting element and organic light emitting element including same

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Embodiment Construction

[0044] Hereinafter, a light extraction substrate for an organic light emitting diode (OLED) device and an OLED device including the same will be described in detail with reference to the accompanying drawings.

[0045] In the following description, in cases where it may make the subject matter of the present disclosure unclear due to inclusion of the detailed description of known functions and components, the detailed description of known functions and components incorporated herein will be omitted.

[0046] Such as figure 1As shown in , the light extraction substrate 100 for an OLED device according to an exemplary embodiment is a functional substrate for improving light extraction efficiency of the OLED device to improve brightness of a lighting device in which the OLED device is used. The light extraction substrate 100 is disposed in a portion of the OLED device through which light generated by the OLED 10 exits.

[0047] The OLED 10 has a multilayer structure sandwiched b...

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Abstract

The present invention relates to a light extraction substrate for an organic light-emitting element and an organic light-emitting element including the light-extraction substrate, and more particularly, relates to the ability to improve the light extraction of an organic light-emitting element by optimizing a stack structure capable of maximizing scattering efficiency Efficient light extraction substrates for organic light-emitting devices. To this end, the present invention provides a light extraction substrate for an organic light-emitting element and an organic light-emitting element comprising the light extraction substrate, the light extraction substrate comprising: a base substrate; a plurality of light scattering objects arranged on the base substrate; a matrix A layer formed on the base substrate to cover a plurality of light-scattering objects; a planarization layer formed on the base layer and whose surface is in contact with the organic light-emitting element, wherein at least one of the base layer, the planarization layer, and the light-scattering objects is covered have different refractive indices.

Description

technical field [0001] The present disclosure relates to a light extraction substrate for an organic light emitting diode (OLED) device and an OLED device including the same. More particularly, the present disclosure relates to a light extraction substrate for an OLED device having an optimized multilayer structure capable of maximizing scattering efficiency to improve the light extraction efficiency of the OLED device and an OLED device including the same. layer structure. Background technique [0002] In general, light emitting devices can be classified into organic light emitting diode (OLED) devices having a light emitting layer formed of an organic material and inorganic light emitting devices having a light emitting layer formed of an inorganic material. Among OLED devices, an OLED is a self-luminous light source based on radiation decay of excitons generated in an organic light-emitting layer by recombination of electrons injected through an electron injection electr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/52
CPCY02E10/549H10K77/10H10K77/111H10K50/854H10K50/858H10K2102/331G02B5/0242
Inventor 尹洪李柱永李弦熙金东显金玟奭金序炫禹广济
Owner SAMSUNG CORNING PRECISION MATERIALS CO LTD